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Table 4 Median values of time intervals of studies with non-adequate (<0.70) and adequate (≥0.70) test-retest values

From: A critical analysis of test-retest reliability in instrument validation studies of cancer patients under palliative care: a systematic review

Evaluated domains Number of studies Time interval (hours) Median (Q1-Q3) p-value*
Test-retest < 0.70 Test-retest ≥ 0.70
Global HRQoL 19 168 (36–168) 60 (36.75-206) 0.565
Emotional 8 1681 168 (48–204) -
Physical 5 1681 108 (30–195) -
Social 6 1862 108 (48–195) -
Functioning 3 - 1683 -
Existential 6 1201 168 (48–232) -
Global symptoms 5 25.752 483 -
Pain 18 120 (42–168) 48 (3–168) 0.262
Nausea 12 108 (33–168) 24 (3–72) 0.146
Fatigue 11 48 (24–168) 3 (2.5-120) 0.184
Anxiety 10 72 (36–168) 48 (8.25-144) 0.443
Depression 9 102 (27–168) 60 (18.75-96) 0.587
  1. HRQoL health-related quality of life.
  2. *Mann–Whitney test.
  3. 1Only one study. 2Only two studies. 3Only three studies.